liq| mel|: +$g_ShowliqLog, and not output liqlog() message
liq| er|: +ei_trace_depth()'s parameters: transp, glossy_reflect, diffuse_reflect, glossy_refract, diffuse_refract, sum.
liq|: liqShader::removeRedundentExtsion(), skip empty value
liq| er| ess|: 11. ei_shader_param_token() is OK, remove the warnings
liq| er|: +ei_trace_depth()'s parameters: transp, glossy_reflect, diffuse_reflect, glossy_refract, diffuse_refract, sum.
update test cases.